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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Orange County Lake Quality

California, 8 lakes, measured by SWRCB

Orange County holds 8 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. The 8 monitored lakes in Orange County carry whatever clarity, phosphorus, and chlorophyll-a readings SWRCB has published, shown as reported.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Where to stay near Orange County

Top-rated places to stay near Orange County

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All Lakes in Orange County

8 lakes · 0 ranked on readings, 8 without enough sampling0 lakes ranked on readings · 8 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
Anaheim LakeOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Irvine LakeOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake Mission ViejoOrange9.5 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
North LakeOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
San Joaquin ReservoirOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sand Canyon ReservoirOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sulphur Creek ReservoirOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Walnut Canyon ReservoirOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Source: the California State Water Resources Control Board. See data sources.